公开(公告)号：US5182354A

公开(公告)日：1993-01-26

申请号：US507694

申请日：1990-05-07

申请人： Peter Horn ,  Walter Heckmann ,  Falko Ramsteiner ,  Friedrich Gerold

发明人： Peter Horn ,  Walter Heckmann ,  Falko Ramsteiner ,  Friedrich Gerold

IPC分类号： A61L27/00 ,  A61L27/34 ,  A61L27/48 ,  A61L29/00 ,  A61L31/00 ,  B01D63/02 ,  C08G18/10 ,  C08G18/30 ,  C08G18/32 ,  C08G18/48 ,  C08G18/72 ,  C08G18/76

CPC分类号： C08G18/7671 ,  A61L27/34 ,  A61L27/48 ,  B01D63/023 ,  C08G18/10 ,  C08G18/4829

摘要： The invention relates to transparent, substantially compact polyurethane casting compositions, sterilizable with superheated steam, which are prepared by the reaction of:A) modified diphenylmethane diisocyanates (A) that are liquid at 23.degree. C. and are in turn are obtained by the reaction of1) a diphenylmethane diisocyanate isomer mixture, which in terms of 100 parts by weight comprises 60 to 90 parts by weight of 4,4'-diphenylmethane diisocyanate, 40 to 8 parts by weight of 2,4'-diphenylmethane diisocyanate, and 0 to 5 parts by weight of 2,2'-diphenylmethane diisocyanate with2) at least one polyoxypropylene polyol initiated with glycerine and/or trimethylol propane, having a molecular weight of 350 to 800 with a ratio of NCO:OH groups of 2.5:1 to 15:1, withB) at least one compound having at least two reactive hydrogen atoms in the presence or absence ofC) catalysts,as well as to a process for preparing the polyurethane casting compounds and their use for medical-technical articles.

摘要翻译： 本发明涉及透明的，基本上紧凑的聚氨酯流延组合物，其可用过热蒸汽灭菌，其通过以下反应制备：A）在23℃下为液体的改性二苯甲烷二异氰酸酯（A），其又通过反应获得 的1）二苯基甲烷二异氰酸酯异构体混合物，其以100重量份计包含60至90重量份的4,4'-二苯基甲烷二异氰酸酯，40至8重量份的2,4'-二苯基甲烷二异氰酸酯和0 至5重量份的2,2'-二苯基甲烷二异氰酸酯与2）至少一种由甘油和/或三羟甲基丙烷引发的聚氧丙烯多元醇，其分子量为350至800，NCO:OH基团的比例为2.5:1 在B存在或不存在下，B）至少一种具有至少两个反应性氢原子的化合物，以及制备聚氨酯浇铸化合物的方法及其在医疗技术领域中的用途 es。

公开(公告)号：US5045623A

公开(公告)日：1991-09-03

申请号：US564224

申请日：1990-08-08

申请人： Peter Horn ,  Werner Hinz ,  Walter Heckmann ,  Falko Ramsteiner ,  Friedrich Gerold

发明人： Peter Horn ,  Werner Hinz ,  Walter Heckmann ,  Falko Ramsteiner ,  Friedrich Gerold

IPC分类号： A61L31/00 ,  A61L2/07 ,  A61L27/18 ,  A61L27/34 ,  A61L27/44 ,  B01D63/02 ,  B01D65/00 ,  C08G18/10 ,  C08G18/12 ,  C08G18/48 ,  C08G18/72 ,  C08G18/76

CPC分类号： C08G18/7671 ,  A61L2/07 ,  A61L27/18 ,  A61L27/34 ,  A61L27/44 ,  B01D63/023 ,  B01D65/003 ,  C08G18/12 ,  C08G18/4804 ,  C08G18/4816

摘要： The present invention relates to transparent essentially non-cellular polyurethane casting compositions that are sterilizable with superheated steam which are prepared by reacting:(A) modified diphenylmethane diisocyanates (A) liquid at 23.degree. C. obtained by reacting(A1) 4,4'-diphenylmethane diisocyanate or(A2) 2,4'-diphenylmethane diisocyanate or(A3) a diphenylmethane diisocyanate mixture with(A4) at least one polyoxypropylene polyol and/or(A5) at least one polyoxypropylene polyoxyethylene polyol containing 1 to 80 weight percent of ethylene oxide units whereby (A4) and (A5) have a functionality of 4 to 8 and a hydroxyl number of 150 to 500 and are obtained while using sucrose and/or preferably sorbitol as initiator molecules(A6) a mixture of (A4) and/or (A5) and at least one polyoxypropylene polyol and/or polyoxyethylene polyol initiated with glycerine and/or trimethylolpropane in a NCO:OH group ratio of 2.5:1 to 15:1 with(B) at least one compound having at least reactive hydrogen atoms which preferably contains no primary, secondary or tertiary amino groups in bonded form in the presence of or absence of(C) catalysts.The present invention also relates to a process for the preparation of polyurethane casting compositions and their use for medical-technical articles.

摘要翻译： 本发明涉及通过使（A）在23℃下的改性二苯基甲烷二异氰酸酯（A）液体（A）通过使（A 1）4,4'二醇（A）反应得到的过热蒸汽灭菌的透明基本上非多孔聚氨酯流延组合物， （A2）2,4'-二苯基甲烷二异氰酸酯或（A3）二苯基甲烷二异氰酸酯混合物与（A4）至少一种聚氧丙烯多元醇和/或（A5）至少一种含有1至80重量％ 环氧乙烷单元，其中（A4）和（A5）具有4至8的官能度和150至500的羟值，并且当使用蔗糖和/或优选山梨醇作为引发剂分子（A6）时，得到（A4）和 /或（A5）和至少一种以甘油和​​/或三羟甲基丙烷起始的至少一种聚氧丙烯多元醇和/或聚氧乙烯多元醇，其中（B）至少一种具有至少反应性的化合物 水 在（C）催化剂存在或不存在下优选不含有键合形式的伯，仲或叔氨基的原子原子。 本发明还涉及制备聚氨酯浇铸组合物的方法及其在医疗技术制品中的用途。

公开(公告)号：US4720535A

公开(公告)日：1988-01-19

申请号：US20951

申请日：1987-03-02

申请人： Gisbert Schleier ,  Friedrich Gerold

发明人： Gisbert Schleier ,  Friedrich Gerold

IPC分类号： C08G18/10 ,  C08G18/12 ,  C08G18/76

CPC分类号： C08G18/76 ,  C08G18/10 ,  C08G18/12

摘要： This invention relates to moisture tempered, storage stable, single component polyurethane systems prepared from a polyurethane prepolymer derived from an aromatic polyisocyanate, and a polyaldimine, which are used for preparing polyurethane elastomers or polyurethane coatings having improved temperature resistance.

摘要翻译： 本发明涉及由衍生自芳族多异氰酸酯的聚氨酯预聚物制备的水分回收，储存稳定的单组分聚氨酯体系，以及用于制备具有改善耐温性的聚氨酯弹性体或聚氨酯涂料的聚醛亚胺。